# pegproof

> Independent on-chain checks of Robinhood's 203 Stock Tokens on Robinhood Chain (chain id 4663): each token's supply reconciled against its full mint and burn history, its multiplier compared with Robinhood's published list, and contracts that copy a token's ticker or name catalogued as look-alikes. Pages and lookups are free; a JSON API is paid per call through x402 (USDC on Base or Arbitrum One, no account, no key).

Every figure is read from the chain and can be re-checked: each token page has a verify.sh that compares pegproof's numbers with a fresh read from any Robinhood Chain node. pegproof is neither an issuer nor an exchange, and nothing here is financial advice. Token tickers and names come from Robinhood's published list; tokens of other issuers (Ondo Global Markets, today) are recognised from each issuer's own list but not reconciled.

## Docs

- [API documentation](https://pegproof.com/docs): free and paid routes, response fields, caching, x402 payment
- [OpenAPI](https://pegproof.com/openapi.json): the paid routes and the address lookup, OpenAPI 3.1 with x402 pricing
- [Methodology](https://pegproof.com/methodology.md): how every figure is computed, checked and flagged (Markdown)
- [Status](https://pegproof.com/status): how the collector has run, tick by tick
- [What's new](https://pegproof.com/changes): dated changes, newest first; RSS at https://pegproof.com/changes.xml

## Free data

- [Registry](https://pegproof.com/registry.json): the 203 tokens with ticker, name, address, decimals and sources (CC-BY-4.0)
- [Address lookup](https://pegproof.com/v1/address/0xd0601ce157db5bdc3162bbac2a2c8af5320d9eec): one address in, `official`, `look-alike` or `unknown` out, with what a look-alike imitates
- [All tokens, CSV](https://pegproof.com/tokens.csv): supply, shares and value estimate per token
- [Series manifest](https://pegproof.com/v1/series): every token's state and full-history check

## Paid API (x402)

- [/api/v1/token/{ticker|address}](https://pegproof.com/api/v1/token/NVDA): $0.002 per call. Check a Robinhood stock token before an agent buys, holds or accepts it: the contract Robinhood lists, or a known look-alike? Pass a ticker (NVDA) or a contract address on Robinhood Chain (4663). For a listed token: total supply, treasury balance, multiplier, ledger coverage, open integrity flags and the look-alikes pegproof knows of. For a look-alike address: which token it imitates. On-chain observations reconstructed from chain event logs, not financial advice.
- [/api/v1/token/{ticker|address}/events](https://pegproof.com/api/v1/token/NVDA/events): $0.005 per call. Audit when a Robinhood stock token's supply was created or destroyed: every mint, burn, issue, redeem and transfer, newest first. Pass a ticker (NVDA) or a contract address on Robinhood Chain (4663); page through with the opaque cursor (keyset on block and log index). On-chain observations reconstructed from chain event logs, not financial advice.
- [/api/v1/incidents](https://pegproof.com/api/v1/incidents): $0.005 per call. Monitor all of Robinhood's stock tokens in one call: integrity incidents, newest first. An incident is a token whose supply or treasury balance diverged from its full mint/burn ledger, or a ledger rebaseline, with its type, status and block window. type=integrity (default), operational (collector errors) or all. On-chain observations and reconciliation findings, not financial advice.
- [/api/v1/snapshot/{ticker|address}](https://pegproof.com/api/v1/snapshot/NVDA?block=64000000): $0.01 per call. Verify a Robinhood stock token's state at a past block: total supply, treasury balance and multiplier from the newest confirmed snapshot at or before it. Use it to check a historical position, report or trade against what was on-chain then. Pass a ticker or contract address and block=<number>. On-chain observations reconstructed from chain event logs, not financial advice.

## MCP server

- [MCP endpoint](https://pegproof.com/mcp): Streamable HTTP. Free tools check_address and find_token; token_summary, token_events, incidents and token_snapshot at the prices above, paid with x402 in the MCP call (`_meta["x402/payment"]`)
- [Server card](https://pegproof.com/.well-known/mcp.json): the endpoint, tools and prices as JSON

## Optional

- [Weekly reports](https://pegproof.com/reports): what changed each week, with corrections
- [x402 discovery](https://pegproof.com/.well-known/x402): the paid resources above as JSON